The Hippopotamus is a big animal and the adult hippos are hard to kill, but hippos are still eaten. The most common predators are big cats, such as lions and tigers, but they are also feasted on by hyenas, and Crocodiles. The predators usually strike the young and sick individuals. On top of this all Hippos are threatened by human hunters. The hunters kill innocent hippos for meat as well as it's ivory teeth. There would be fewer hippos killed if there was no ban on ivory from elephants, because of this the number of hippos has risen dramatically.